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UNISONIC TECHNOLOGIES CO., LTD C555 Preliminary CMOS IC www.unisonic.com.tw 1 of 4 Copyright © 2013 Unisonic Technologies Co., Ltd QW-R502-A12.b SINGLE TIMER  DESCRIPTION The C555 astable and monostable timing circuit is a highly stable controller capable of producing accurate time delays, or oscillation.  FEATURES * Timing from microseconds through hours * High speed operation – 500kHz * Wide operation supply voltage range – 2 to 18 voltages * Low Supply Current －0.2mA * Operates in both astable and monostable modes * High output source/sink driver can drive TTL / CMOS * Adjustable duty cycle  ORDERING INFORMATION Ordering Number Package Packing Lead Free Halogen Free C555L-D08-T C555G-D08-T DIP-8 Tube C555L-S08-T C555G-S08-T SOP-8 Tube C555L-S08-R C555G-S08-R SOP-8 Tape Reel

UNISONIC TECHNOLOGIES CO., LTD 2 of 4 www.unisonic.com.tw Q W - R 5 0 2 - A 1 2 . b  PIN CONFIGURATION  PIN DESCRIPTION PIN No. PIN NAME DESCRIPTION

1 GND Ground

2 TRIGGER Trigger voltage input

3 Output Output

4 RESET Direct reset low input

5 Control_Voltage Control voltage

6 Threshold Threshold voltage input

7 Discharge Discharging when output is low

8 V CC Supply voltage

 TRUTH TABLE THRESHOLD TRIGGER RESET OUTPUT DISCHARGE X X L L ON >2/3×VCC >1/3×V CC H L ON <2/3×VCC >1/3×V CC H STABLE STABLE X <1/3×V CC H H OFF  BLOCK DIAGRAM

UNISONIC TECHNOLOGIES CO., LTD 3 of 4 www.unisonic.com.tw Q W - R 5 0 2 - A 1 2 . b  ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL RATINGS UNIT Supply Voltage V CC 18 V Input Voltage V TH, VTRIG, VRST -0.3 ~ VCC+0.3 V Output Current I O 100 mA Power Dissipation P D 200 mW Junction Temperature T J 125 °C Operating Temperature T OPR -20~85 °C Storage Temperature T STG -65~150 °C Note: Absolute maximum ratings and operation rating recommended are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied.  RECOMMENDED OPERATING CONDITIONS PARAMETER SYMBOL RATINGS UNIT Supply Voltage V CC 2.0 ~ 18 V Output Current I O 20 mA Operating Temperature T OPR -20~75 °C  ELECTRICAL CHARACTERISTICS (unless otherwise specified) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT TA=25°C Supply Current I CC VCC=2V 200 μA VCC=18V 300 μA Initial Accuracy A CCUR VCC=5V, RL=1~100kΩ, CL=0.1μF 5 % Drift with Supply Voltage ∆t/∆VCC 3 %/C Control Voltage V C 0.65×V CC 0.69×V CC V Threshold Voltage V TH VCC=5V 0.65×V CC 0.70×V CC V Trigger Voltage V TR V CC=5V 0.31×V CC 0.36×V CC V Reset Voltage V RST V CC=2~18V 0.4 1.0 V Low Output Voltage V OL VCC=5V, IOL=3.2 mA 0.4 V VCC=15V, IOL=20mA 1.0 V High Output Voltage V OH VCC=5V, IOL=0.8mA 4.0 V VCC=15V, IOL=0.8mA 14.3 V Rise/Fall Time of Output t THL, tTLH, V CC=15V, RL=10MΩ, CL=10pF 35 75 ns Guaranteed Max Osc Freq f MAX V CC=2~18V, Astable Operation 500 kHz TA=-20~70°C Supply Current I CC VCC=2V 400 μA VCC=18V 600 μA Initial Accuracy A CCUR V CC=5V, RL=1~100kΩ, CL=0.1μF5 % Drift with Temperature ∆t/∆T VCC=5V, RL=1~100kΩ, CL=0.1μF VCC=5V 0.02 %/°C VCC=15V 0.06 %/°C Drift with Supply Voltage ∆t/∆VCC V CC=5V 6 %/C Control Voltage V C 0.60×V CC 0.80×V CC V Threshold Voltage V TH VCC=5V 0.60×V CC 0.80×V CC V Trigger Voltage V TR V CC=5V 0.28×V CC 0.40×V CC V Reset Voltage V RST V CC=2~18V 0.2 1.5 V Low Output Voltage V OL VCC=5V, IOL=3.2mA 0.6 V VCC=15V, IOL=20mA 1.5 V High Output Voltage V OH VCC=5V, IOL=0.8mA 3.5 V VCC=15V, IOL=0.8mA 14 V Rise/Fall Time of Output t THL, tTLH, V CC=5V, RL=10MΩ, CL=10pF 70 150 ns Guaranteed Max Osc Freq f MAX V CC=2~18V, Astable Operation 200 kHz

UNISONIC TECHNOLOGIES CO., LTD 4 of 4 www.unisonic.com.tw Q W - R 5 0 2 - A 1 2 . b  TYPICAL APPLICATION CIRCUIT TRIGGER RESET  SWITCHING WAVEFORMS UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice.